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H. BRUNS.

DETAGHING-APPARATUS-FOR BOATS.

Na. 300,566 Patented June 17, 1884.

WITNESSES: F

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ll'iviirnn Srares Parent HINBIGH BBUNS, OF BREMEBHAVFN, GERMANY.

DETACHING APPARATUS FOR BOATS.

iiPECIFICATION forming part of Letters Patent No. 300,566, dated June 17, l884-.

Application filed March 29, 1894.

' stern. posts, and provided at their upper ends with pivoted hooks that engage the mousinghooks of the fall-blocks. Below the hooks are pivoted locking-linkshaving detachable trans verse bolts, said locking-links being simultaneously released by connecting-lever mechanisms operated by a vertical crank-shaft supported below one of the seats of the boat, and having a hand-lever that is locked in normal position by a spring or other fastening device.

in the accompanying drawings, Figure 1 represents avertical longitudinal section of a boat provided with my improved detaching apparatus. Fig. 2 is a detail side view of the detaching mechanism at one side of the boat;

Fig. 3, an end elevation of the same, and Figs.

B, which release thereby instantly the mousl and .3 are plans oithelever mechanism for operating the detaching mechanisms at both ends of the boat from an intermediate point.

Similar letters of reference indicate the same parts throughout the several views.

A in the drawings represents the eyes or mousing-hooks of the davit l'allblooks of the davits,which are engaged by hooks B B, which are pivoted to inclined brace-irons B B at the stem and stern of the boat, said irons B B being secured at the lower ends to the keel and at the upper ends, respectively, to the stem and stern posts of the boat. By thus connecting the inclined irons B B at two points, they are adapted to resist the strains exert-ed thereon in a higher degree than when the connect-ion is simply made with the stem and stern posts.

Below thehooksB Kare pivotedto the braceirons B B the locking-links C C, which are closed by detachable bolts 0 0, having an eye at one end and an articulated piece at the other end. The eye of the bolt 0 is attached by a chain to the iron B or the boat, sothat when the bolt 0 is withdrawn it is suspended by the (No model) in Figs. 2 and 3, so as to prevent the playing loose of the bolt 0 from the locking-link O. The belt G is passed through the eye of a connectingrod, (I, which is pivoted to one arm of a bell-crank lever, e, fulcrumed to the inclined I iron B. The other arm of the bell-crank lever c is connected by alever rod, f, extending longitudinally above the keel to a suitable point between the stem and stern posts, to a crank, f, of a vertical shaft, f that turns in a stepbearing of the keel and a hearing of one of the seats D, as shown in Fig. 1. The shaft f is provided below the seat I) with a hand-lever, f, which, when in normal position, is retained by a stout spring catch, f, as shown in Figs. 1 and A second crank f of the shaft 1 connects with a second cranlcrod f, bell-crank c, and connectingrod (Z of the locking'link G at the opposite end of the boat. By turning the leverf clear oi'thc spring-eatchf, the interniiediate mechanisms lower both lockinglinks C- C, so that they liberate the hooks B ing-hooks of the fall-blocks and detach the boat simultaneously at both ends from the same. The rcattaching the boat to thevfallblocks can be accomplished in two ways: first, by thejoint action of three men of which one is at the seat, the others respectively at the stem and stern of the boat. The latter take hold of the fall-blocks, pass the hooks B B through the mousinghooks of the fall'blocks, and lower them into a downwardly-inclined position. As soon as this is accomplished, the third man returns the lever into normal position, so as to be retained by the spring-catch, which causes the locking-links to engage the ends of the hooks, as shown in Fig. 1 and in dotted lines in Fig. If three hands are not available, the boat can be reattached by one man, who places the lever first in normal position, so as to raise the locking-links. The transverse bolt of one link is then withdrawn, the hook B passed through the mousing-hook of one fall-block, turned down into its lowered position between the link, when the bolt 0 is replaced. The same operation is then accomplished at the other end of the boat, so that the detaching apparatus is ready for action whenever required. v

The advantages of my improved boat-detaching apparatus are- First. The rigid connection of the hooks by the inclined irons, which are attached to the keel and stem and stern posts, respectively, prevents the tearing out of the hooks, which has frequently happened heretofore, so as to cause the capsizing of the boat.

Secondly; The detaching devices cannot release themselves, either automatically or by the action of the waves, but only when the releasing mechanism is operated.

Thirdly. It will notdetach at one end only, but always at both ends simultaneously. It is thereby more reliable than the so-called automatic detaching devices, which frequently detach at one end when the boat hugs the water at one end only without clearing the other end, which causes accident and loss of life.

Fourthly. The operating mechanism is located at the bottom of the boat, and protected so as not to get out of order.

I am aware that boat-detaching tackle in which the fall-blocks of the davits are connected to hooks or links attached to the bow and stern of the boat, said links being released by suitable lever mechanism, either automatically when the boat arrives on the surface of the water or by operating said lever mechanism by hand, have been used heretofore, and I do not claim these features, broadly.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combinatiom-with the mousinghooks of the davit fall-blocks, of hooks pivoted to inclined brace-irons secured at their upper ends to the stem and stern posts of the boat and at their lower ends to the keel, lockinglinks pivoted below the hooks, and connecting-lever mechanisms operated and arranged 5 substantially as described,whereby both hooks are simultaneously released from the fallblocks, substantially as specified.

2. The combination of inclined brace-irons secured at their upper ends to the stem and stern posts of a boat and at their lower ends to the keel, hooks pivoted to the brace-irons, locking-links pivoted to the brace-irons below the hooks, lever mechanisms connecting the links with acrank-shaft at a point between the stem and stern posts, and a retaining device for locking the crank-shaft and detaching devices in normal position, substantially as set forth.

3. The combination of inclined brace-irons secured at the low-er ends to the heel and at the upper ends to'the stem and stern posts, respectively, hooks pivoted to the upper ends of the brace-irons, locking-links pivoted below said hooks, said links having transverse detachable bolts, a crank-shaft supported in bearings of the keel and seat of the boat, and intermediate lever mechanisms by which the crank-shaft is connected with the lockinglinks, substantially as set forth.

4. The combination of inclined brace-irons B B, secured at the lower ends to the keel and at the upper ends to the stem and stern posts of the. boat, pivoted hooks B B, engaging the mousing-hooks of the fall-blocks, locking-links O, pivoted to the brace-irons below the hooks, connecting-rods d d, bell-crank levers e e, longitudinal lever-rods ff, crank-shaftf leverhandle f, and spring-catch f of the seat, substautially as described. y

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

HINRICH I BRUNS.

\Vitnesses:

PAUL GonrnL, SIDNEY llIANN. 

